A foundation detection sampling device for water conservancy projects and its use method

Abstract

The present invention discloses a foundation detection sampling device for water conservancy projects and a method for using the same, and belongs to the technical field of water conservancy projects. A foundation detection sampling device for water conservancy projects includes a base, and also includes: a top plate, which is arranged on the upper side of the base, and a connecting rod is arranged between the top plate and the base; a sampling tube, which is movably arranged at the base, and a drill bit is arranged at the bottom of the sampling tube, and a feed port connected to the sampling tube is opened on the drill bit, and a separation component for dividing the soil is arranged in the drill bit; the present invention uses the separation component to cut and separate the soil sample collected in the sampling tube from the ground soil, so that the collected soil sample can be smoothly moved up with the sampling tube, ensuring the success rate of sampling, and the cutting plate separates the soil collected in the sampling tube from the inner wall of the sampling tube, and can completely remove the soil sample after it moves up with the sampling tube, ensuring the original state of the removed soil sample and the integrity of the bottom structure, and improving the accuracy of the measurement results such as soil bulk density.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy projects, and in particular to a foundation detection sampling device for water conservancy projects and a method of using the device. Background Art

[0002] The geological conditions at the foundation of a water conservancy project have a decisive influence on the construction, quality and durability of the foundation after construction. Before the design and construction of a water conservancy project, it is necessary to sample and test the soil at the water conservancy project site, and then determine the location of the water conservancy project foundation after comprehensive comparison based on the test results.

[0003] In the prior art, the patent application number CN202021903828.5 discloses a foundation detection sampling device for water conservancy projects, which controls the motor to rotate the sampling cylinder through the connecting column, enters under the soil, and takes soil samples. However, during the specific operation, it is impossible to separate the bottom of the sample from the foundation body, and it is impossible to ensure that the sample will rise with the rise of the sampling cylinder, and thus the success rate of sampling cannot be guaranteed; and after the sampling cylinder is moved out of the ground, it still needs to be sampled a second time. The electric push rod drives the push plate to move downward, and the soil sample is pushed out of the sampling cylinder. The soil sample in the sampling cylinder is squeezed by the push plate, and the internal structure of the soil changes. It is impossible to ensure that the original state of the extracted soil sample is intact, which reduces the accuracy of the measurement results such as soil bulk density. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a foundation detection sampling device for water conservancy projects and a method of using the same.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A foundation detection sampling device for water conservancy projects, comprising a base and:

[0007] A top plate, the top plate being arranged on the upper side of the base, and a connecting rod being provided between the top plate and the base;

[0008] A sampling cylinder, the sampling cylinder is movably arranged at the base, a drill bit is provided at the bottom of the sampling cylinder, a feed port connected to the sampling cylinder is provided on the drill bit, and a separation component for dividing the soil is provided in the drill bit;

[0009] A lifting assembly, which is arranged between the base and the top plate and is used to drive the sampling tube to move vertically;

[0010] A driving mechanism, comprising a driving assembly for driving the sampling cylinder to rotate and a transmission assembly connected to the driving assembly and for driving the lifting assembly to work;

[0011] Wherein, a dividing plate is fixedly provided on the top plate and abuts against the inner wall of the sampling tube.

[0012] Preferably, the driving assembly includes a driving motor fixed on the top plate, the output shaft of the driving motor passes through the top plate and is connected to the main gear, the bottom of the top plate is rotatably connected to a gear ring that meshes with the main gear, a telescopic plate is fixed to the bottom of the gear ring, a first elastic telescopic rod is provided on the telescopic plate, the end of the first elastic telescopic rod away from the telescopic plate is connected to the sampling tube, and a rotating ring is fixed to the outside of the telescopic plate.

[0013] Preferably, the lifting assembly includes a screw rotatably arranged between the base and the top plate, a sleeve is threadedly connected to the screw, and the sleeve is slidably connected to the rotating ring.

[0014] Preferably, the transmission assembly includes a pinion fixedly connected to the output shaft, and the screw is provided with a driven gear meshing with the pinion, and the pinion and the driven gear are both rotatably connected in a cavity opened on the top plate.

[0015] Preferably, the separation component includes a receiving groove opened in the drill bit and connected to the feed port, a dividing plate is slidably connected in the receiving groove, a return spring is provided between the dividing plate and the inner wall of the receiving groove, one end of the dividing plate is connected to a pull rope, the end of the pull rope away from the dividing plate passes through the drill bit and is connected to a force-bearing plate, the force-bearing plate and the top wall of the base are movably opposed to each other, a sliding groove for the sliding of the force-bearing plate is opened on the sampling cylinder, a third elastic telescopic rod is provided between the inner wall of the sliding groove and the force-bearing plate, and a fixed pulley slidably connected to the pull rope is provided on the sampling cylinder.

[0016] Preferably, the sampling tube includes two arc-shaped shells, the arc-shaped shells are connected to the first elastic telescopic rod, the top of the arc-shaped shell is provided with a curved surface, the cutting plate includes an upper rod body that is movable against the curved surface and a lower cutting plate that is movable against the inner wall of the arc-shaped shell, a support plate is fixed on the drill bit, and a second elastic telescopic rod is arranged between the support plate and the arc-shaped shell.

[0017] Preferably, a first groove is provided at the bottom of the arc-shaped shell, a first clamping block is slidably connected in the first groove and is movably abutted against the dividing plate, a first elastic element is provided between the first clamping block and the inner wall of the first groove, a first inclined surface is provided at one end of the first clamping block away from the first elastic element, and a first clamping groove is provided on the drill bit to cooperate with the first clamping block.

[0018] Preferably, a second groove is provided on the dividing plate, a second clamping block is slidably connected in the second groove, a second elastic element is provided between the second clamping block and the inner wall of the second groove, a second inclined surface is provided at the end of the second clamping block away from the second elastic element, a second clamping groove matching the second clamping block is provided on the drill bit, a third groove is provided at the bottom of the arc-shaped shell, a push block that is slidably connected to the third groove and movably abuts against the second clamping block is provided, and a third elastic element is provided between the push block and the inner wall of the third groove.

[0019] Preferably, the inner wall of the feed port is provided with a plurality of movable grooves in a circular shape, and a swing rod is rotatably connected to each movable groove through a pin shaft, and a torsion spring is sleeved on the pin shaft for driving the swing rod to reset and rotate, and a receiving plate is provided at the end of the swing rod, and a groove is provided in the receiving plate, and a buffer plate is connected to the groove for sliding up and down, and a buffer spring is provided between the buffer plate and the inner wall of the groove.

[0020] The present invention also discloses a method for using a foundation detection sampling device for a water conservancy project, comprising the following steps:

[0021] S1: During sampling, the base is placed on the ground, the drive motor is controlled to operate, and the output shaft of the drive motor drives the main gear and the sub-gear to rotate;

[0022] The main gear is meshed with the gear ring for transmission, and the gear ring drives the sampling tube to rotate through the telescopic plate and the first elastic telescopic rod;

[0023] The secondary gear meshes with the driven gear on the screw, and the driven gear drives the screw to rotate, and the sleeve moves downward along the screw axis. When the sleeve moves downward, the telescopic plate is stretched through the rotating ring, so that the sleeve moves downward and drives the rotating sampling tube to move. The sampling tube is drilled into the ground through the drill bit at the bottom. The swing rod at the feed port is pressed by the soil and fits against the inner wall of the feed port, and the soil enters the sampling tube through the feed port.

[0024] S2: As the sampling tube continues to penetrate deeper into the soil, the amount of soil collected in the sampling tube increases, and then the force plate abuts against the top surface of the base, and the force plate is lifted relative to the sampling tube that continues to move downward. The third elastic telescopic rod is compressed, and the force plate pulls the dividing plate through the pull rope, causing the dividing plate to move horizontally in the receiving groove. The dividing plate separates the soil entering the sampling tube from other underground soil and blocks the feed port, so that the soil sample in the sampling tube no longer adheres to other soil;

[0025] When the dividing plate moves horizontally, it pushes the first card block inserted into the first card slot, causing the first card block to move upward and press the first elastic element. The first inclined surface of the first card block is placed in the first card slot, and the positions of the sampling tube and the drill bit are no longer restricted.

[0026] When the partition plate moves laterally, the second clamping block moves synchronously. When the partition plate blocks the feed inlet, the second clamping block is aligned with the second clamping groove. The second clamping block enters the second clamping groove under the elastic force of the second elastic element, and the position of the partition plate and the drill bit is limited.

[0027] S3: The driving motor then drives the main gear and the sub-gear to rotate in opposite directions via the output shaft, and the sleeve moves upward along the axial direction of the screw. The sleeve drives the sampling barrel upward via the rotating ring, the telescopic plate, and the first elastic telescopic rod, and the sampling barrel moves upward with the soil sample collected therein;

[0028] The sampling tube rotates during the upward movement, and the inner wall of the sampling tube fits with the lower cutting plate, which cuts the sampling tube and the soil sample adhered to it, so that the soil sample on the inner wall of the sampling tube is no longer adhered to the inner wall of the sampling tube;

[0029] As the sampling tube continues to move upward, the curved surface on the top of the sampling tube abuts against the upper rod, and the two arc-shaped shells of the sampling tube are forced to separate, thereby increasing the distance between the sampling tube and the soil sample inside.

[0030] When the arc-shaped housing moves, the push block at the bottom moves to the second slot. Under the elastic force of the third elastic element, the push block presses down on the second block in the second slot. The second block contracts into the second groove, releasing the restriction between the dividing plate and the drill bit. The dividing plate moves back under the pull of the return spring. The dividing plate no longer blocks the feed port of the drill bit, preparing for subsequent soil sampling.

[0031] S4: The soil sample collected in the sampling tube is no longer adhered to the inner wall of the sampling tube on the periphery and is no longer supported by the bottom dividing plate. The soil sample falls under its own gravity. When the drill bit moves out of the ground, the swing arm at the feed port is reset and rotated under the action of the torsion spring. The columnar soil sample first contacts the buffer plate to reduce the falling height of the columnar soil sample. The deformation of the buffer spring cushions the downward force of the columnar soil sample. Finally, the receiving plate supports the columnar soil sample. The staff then continues to manually separate the arc-shaped shells on both sides. The staff removes the columnar soil sample from the receiving plate for testing.

[0032] Compared with the prior art, the present invention provides a foundation detection sampling device for water conservancy projects and a method of using the same, which has the following beneficial effects:

[0033] 1. The foundation detection sampling device for water conservancy projects and its use method cut and separate the soil sample collected in the sampling tube from the ground soil through a separation component, so that the collected soil sample can be smoothly moved upward with the sampling tube, ensuring the success rate of sampling. The cutting plate separates the soil collected in the sampling tube from the inner wall of the sampling tube, and the soil sample can be completely removed after moving upward with the sampling tube, ensuring the original state and bottom structure of the removed soil sample, and improving the accuracy of the measurement results such as soil bulk density.

[0034] 2. The foundation detection sampling device for water conservancy projects and the method of using the same, when the separation component is working, the dividing plate separates the soil entering the sampling tube from other underground soil and blocks the feed port, and the lateral movement of the dividing plate drives the second clamping block to move synchronously. When the dividing plate blocks the feed port, the second clamping block is aligned with the second clamping slot, and the second clamping block enters the second clamping slot under the elastic force of the second elastic element. The position of the dividing plate and the drill bit is limited, so that the dividing plate maintains a blocked state for the feed port during the upward movement of the sampling tube, thereby preventing the soil collected in the sampling tube from automatically sliding, and further improving the success rate of sampling.

[0035] 3. The foundation detection sampling device for water conservancy projects and the method of use thereof are characterized in that the swing rod at the feed inlet is reset and rotated under the action of the torsion spring when the drill bit moves out of the ground. After the columnar soil sample in the sampling tube is no longer supported by the dividing plate, the columnar soil sample falls under the action of its own gravity and first contacts the buffer plate, thereby reducing the falling height of the columnar soil sample. The deformation of the buffer spring buffers the downward force of the columnar soil sample, thereby reducing the downward force of the columnar soil. Finally, the receiving plate supports the columnar soil sample, further ensuring the original degree and internal structure integrity of the columnar soil sample, and ensuring the accuracy of subsequent detection results of the soil sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0037] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0038] Figure 3 This is a schematic structural diagram of the sampling tube of the present invention when it is separated;

[0039] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-section structure of the lower part;

[0040] Figure 5 For the present invention Figure 4 A partial enlarged structural diagram of the middle part;

[0041] Figure 6 Schematic diagram of the cross-sectional structure of the top plate of the present invention;

[0042] Figure 7 For the present invention Figure 6 A schematic diagram of the partially enlarged structure of part B in the middle;

[0043] Figure 8 For the present invention Figure 6 Schematic diagram of the partially enlarged structure of the middle C part;

[0044] Figure 9This is a schematic structural diagram of the separation assembly of the present invention when it is working;

[0045] Figure 10 Schematic diagram of the cross-sectional structure of the partition plate of the present invention;

[0046] Figure 11 It is a structural schematic diagram of the bottom of the arc-shaped housing of the present invention.

[0047] In the figure: 1, base; 101, connecting rod; 2, top plate; 3, sampling tube; 301, arc-shaped shell; 4, drill bit; 401, feed port; 402, first slot; 403, second slot; 5, cutting plate; 501, upper rod; 502, lower cutting plate; 6, driving motor; 601, output shaft; 6011, main gear; 6012, sub-gear; 602, gear ring; 603, telescopic plate; 604, first elastic telescopic rod; 605, rotating ring; 7, screw; 701, sleeve; 702, driven gear; 8, support plate; 801, second Elastic telescopic rod; 9, first groove; 901, first clamping block; 902, first elastic element; 10, accommodating groove; 11, dividing plate; 111, reset spring; 112, pull rope; 113, force plate; 12, slide groove; 121, third elastic telescopic rod; 13, fixed pulley; 14, second groove; 141, second clamping block; 142, second elastic element; 15, third groove; 151, push block; 152, third elastic element; 16, movable groove; 161, swing rod; 162, receiving plate; 163, buffer plate; 164, buffer spring. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0049] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0050] Example 1: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 A foundation detection sampling device for water conservancy projects includes a base 1 and further includes:

[0051] Top plate 2, top plate 2 is arranged on the upper side of base 1, and connecting rod 101 is provided between top plate 2 and base 1;

[0052] The sampling cylinder 3 is movably arranged on the base 1. A drill bit 4 is provided at the bottom of the sampling cylinder 3. The drill bit 4 is provided with a feed port 401 connected to the sampling cylinder 3. A separation component for dividing the soil is provided in the drill bit 4;

[0053] A lifting assembly is provided between the base 1 and the top plate 2 and is used to drive the sampling tube 3 to move vertically;

[0054] The driving mechanism includes a driving assembly for driving the sampling cylinder 3 to rotate and a transmission assembly connected to the driving assembly and used to drive the lifting assembly to work;

[0055] A dividing plate 5 is fixedly provided on the top plate 2 and abuts against the inner wall of the sampling tube 3 .

[0056] Specifically, the base 1 is placed on the ground of the area to be sampled, and the driving mechanism is controlled to operate. The driving mechanism drives the sampling tube 3 to rotate and drives the lifting component to work. The lifting component drives the rotating sampling tube 3 to move downward, and the sampling tube 3 penetrates into the soil through the drill bit 4 at the bottom. The soil enters the sampling tube 3 through the feed port 401 of the drill bit 4. After the soil sample is collected in the sampling tube 3, the separation component automatically works to separate the soil sample in the sampling tube 3 and the soil on the lower side, so that the collected soil sample can move up smoothly with the sampling tube 3 to ensure the success rate of sampling. Then the driving motor 6 controls the lifting component to drive the sampling tube 3 to move up, and the cutting plate 5 automatically separates the soil adhered to the inner wall of the sampling tube 3 to avoid breakage and loss of the soil when it is taken out from the sampling tube 3, thereby ensuring the integrity of the original state of the taken out soil sample and the bottom structure, and improving the accuracy of the measurement results such as soil bulk density.

[0057] Example 2: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7 , a foundation detection sampling device for water conservancy projects, based on Example 1, further, the driving assembly includes a driving motor 6 fixedly mounted on the top plate 2, the output shaft 601 of the driving motor 6 passes through the top plate 2 and is connected to the main gear 6011, the bottom of the top plate 2 is rotatably connected to a gear ring 602 that meshes with the main gear 6011, a telescopic plate 603 is fixedly mounted on the bottom of the gear ring 602, a first elastic telescopic rod 604 is arranged on the telescopic plate 603, the end of the first elastic telescopic rod 604 away from the telescopic plate 603 is connected to the sampling tube 3, and a rotating ring 605 is fixedly mounted on the outer side of the telescopic plate 603.

[0058] Furthermore, the lifting assembly includes a screw rod 7 rotatably arranged between the base 1 and the top plate 2 , a sleeve 701 is threadedly connected to the screw rod 7 , and the sleeve 701 is slidably connected to the rotating ring 605 .

[0059] Furthermore, the transmission assembly includes a pinion 6012 fixedly connected to the output shaft 601 , and a driven gear 702 meshing with the pinion 6012 is provided on the screw 7 , and both the pinion 6012 and the driven gear 702 are rotatably connected in a cavity opened on the top plate 2 .

[0060] Specifically, the driving mechanism works to control the operation of the driving motor 6. The output shaft 601 of the driving motor 6 drives the main gear 6011 and the sub-gear 6012 to rotate. The main gear 6011 is meshed with the gear ring 602 for transmission. The gear ring 602 drives the sampling barrel 3 to rotate through the telescopic plate 603 and the first elastic telescopic rod 604. The sub-gear 6012 is meshed with the driven gear 702 on the screw 7. The driven gear 702 drives the screw 7 to rotate. The sleeve 701 moves downward along the axis of the screw 7. When the sleeve 701 moves downward, the telescopic plate 603 is stretched through the rotating ring 605, so that when the sleeve 701 moves downward, the rotating sampling barrel 3 is driven to move. The sampling barrel 3 is drilled into the ground through the drill bit 4 at the bottom, and the soil enters the sampling barrel 3 through the feed port 401, thereby realizing the sampling work of the sampling barrel 3.

[0061] Example 3: Reference Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7 , a foundation detection sampling device for water conservancy projects, based on Example 2, further, a separation component includes a receiving groove 10 opened in the drill bit 4 and connected to the feed port 401, a dividing plate 11 is slidably connected in the receiving groove 10, a return spring 111 is provided between the dividing plate 11 and the inner wall of the receiving groove 10, one end of the dividing plate 11 is connected to a pull rope 112, the end of the pull rope 112 away from the dividing plate 11 passes through the drill bit 4 and is connected to a force plate 113, the force plate 113 is movably opposed to the top wall of the base 1, a slide groove 12 for the force plate 113 to slide is opened on the sampling tube 3, a third elastic telescopic rod 121 is provided between the inner wall of the slide groove 12 and the force plate 113, and a fixed pulley 13 slidably connected to the pull rope 112 is provided on the sampling tube 3.

[0062] Specifically, as the sampling tube 3 continues to penetrate into the soil, the amount of soil collected in the sampling tube 3 increases, and then the force plate 113 abuts against the top surface of the base 1. The force plate 113 is lifted relative to the sampling tube 3 that continues to move downward, and the third elastic telescopic rod 121 is compressed. The force plate 113 is guided by the fixed pulley 13 through the pull rope 112 to pull the dividing plate 11, so that the dividing plate 11 moves horizontally in the receiving groove 10. The dividing plate 11 separates the soil entering the sampling tube 3 from other underground soil, and blocks the feed port 401, so that the soil sample in the sampling tube 3 is no longer adhered to other soil, so that the collected soil sample can move up smoothly with the sampling tube 3, thereby ensuring the success rate of sampling.

[0063] Example 4: Reference Figure 1-11 , a foundation detection sampling device for water conservancy projects, based on Example 3, further, the sampling tube 3 includes two arc-shaped shells 301, the arc-shaped shell 301 is connected to the first elastic telescopic rod 604, the top of the arc-shaped shell 301 is provided with a curved surface, the cutting plate 5 includes an upper rod body 501 that is movably opposed to the curved surface and a lower cutting plate 502 that is movably opposed to the inner wall of the arc-shaped shell 301, a support plate 8 is fixed on the drill bit 4, and a second elastic telescopic rod 801 is provided between the support plate 8 and the arc-shaped shell 301.

[0064] Furthermore, a first groove 9 is provided at the bottom of the arc-shaped shell 301, and a first clamping block 901 is slidably connected in the first groove 9 and is movably opposed to the dividing plate 11. A first elastic element 902 is provided between the first clamping block 901 and the inner wall of the first groove 9. A first inclined surface is provided at one end of the first clamping block 901 away from the first elastic element 902, and a first clamping groove 402 is provided on the drill bit 4 to cooperate with the first clamping block 901.

[0065] Furthermore, a second groove 14 is provided on the dividing plate 11, and a second clamping block 141 is slidably connected in the second groove 14. A second elastic element 142 is provided between the second clamping block 141 and the inner wall of the second groove 14. A second inclined surface is provided on the end of the second clamping block 141 away from the second elastic element 142. A second clamping groove 403 cooperating with the second clamping block 141 is provided on the drill bit 4. A third groove 15 is provided at the bottom of the arc-shaped shell 301. A push block 151 that is movably opposed to the second clamping block 141 is slidably connected in the third groove 15, and a third elastic element 152 is provided between the push block 151 and the inner wall of the third groove 15.

[0066] Specifically, when the separation component is working, the partition plate 11 moves horizontally to push the first card block 901 inserted into the first card slot 402, so that the first card block 901 moves up to squeeze the first elastic element 902, and the first inclined surface of the first card block 901 is placed in the first card slot 402. The positions of the sampling cylinder 3 and the drill bit 4 are no longer limited. Before this, the positions of the sampling cylinder 3 and the drill bit 4 were limited in order to prevent the two arc-shaped shells 301 from being separated by the soil when the sampling cylinder 3 is sampling, thereby affecting the sampling effect of the sampling cylinder 3. When the dividing plate 11 moves horizontally, it drives the second clamping block 141 to move synchronously. When the dividing plate 11 blocks the feeding port 401, the second clamping block 141 is aligned with the second clamping groove 403. The second clamping block 141 enters the second clamping groove 403 under the elastic force of the second elastic element 142. The position of the dividing plate 11 and the drill bit 4 is limited, so that the dividing plate 11 maintains the blocking state of the feeding port 401 during the upward movement of the sampling tube 3, thereby preventing the soil collected in the sampling tube 3 from automatically sliding off, thereby further improving the success rate of sampling;

[0067] After the sample is taken out of the bag 3, the upper and lower ends of the bag 3 are tightened, and the upper and lower ends of the bag 3 are tightened, so that the bag 3 is tightened and the upper and lower ends of the bag 3 are tightened.

[0068] When the arc-shaped shell 301 moves, the push block 151 at the bottom moves to the second slot 403. The push block 151 is pushed down by the elastic force of the third elastic element 152 against the second block 141 in the second slot 403. The second block 141 shrinks into the second groove 14, releasing the restriction between the dividing plate 11 and the drill bit 4. The dividing plate 11 moves back under the pull of the reset spring 111. The dividing plate 11 no longer blocks the feed port 401 of the drill bit 4, preparing for subsequent soil sampling.

[0069] Example 5: Reference Figure 3 、 Figure 4 and Figure 9, a foundation detection sampling device for water conservancy projects, based on Example 4, further, a plurality of movable grooves 16 are opened in a circle on the inner wall of the feed port 401, and a swing rod 161 is rotatably connected to each movable groove 16 through a pin shaft, and a torsion spring for driving the swing rod 161 to reset and rotate is sleeved on the pin shaft, and a receiving plate 162 is provided at the end of the swing rod 161, and a groove is opened in the receiving plate 162, and a buffer plate 163 is connected to the groove for sliding up and down, and a buffer spring 164 is provided between the buffer plate 163 and the inner wall of the groove.

[0070] Specifically, when the sampling tube 3 is sampling, the swinging rod 161 at the feed inlet 401 is pressed by the soil and fits against the inner wall of the feed inlet 401, preventing the swinging rod 161 from affecting the soil from entering the sampling tube 3; after the sampling tube 3 moves upward, the soil sample falls under its own gravity, and the swinging rod 161 at the feed inlet 401 returns to its original position and rotates under the action of the torsion spring when the drill bit 4 moves out of the ground;

[0071] As the dividing plate 5 cuts the soil adhered to the inner wall of the sampling tube 3, the soil sample collected in the sampling tube 3 is no longer adhered to the inner wall of the sampling tube 3 on the periphery and is no longer supported by the bottom dividing plate 11. The columnar soil sample first contacts the buffer plate 163, reducing the descending height of the columnar soil sample. The deformation of the buffer spring 164 buffers the downward force of the columnar soil sample. Finally, the receiving plate 162 supports the columnar soil sample, further ensuring the integrity of the original shape and internal structure of the columnar soil sample, and ensuring the accuracy of subsequent test results of the soil sample.

[0072] The present invention also discloses a method for using a foundation detection sampling device for a water conservancy project, comprising the following steps:

[0073] S1: During sampling, the base 1 is placed on the ground, and the drive motor 6 is controlled to operate. The output shaft 601 of the drive motor 6 drives the main gear 6011 and the sub-gear 6012 to rotate;

[0074] The main gear 6011 is meshed with the gear ring 602 for transmission, and the gear ring 602 drives the sampling tube 3 to rotate through the telescopic plate 603 and the first elastic telescopic rod 604;

[0075] The sub-gear 6012 meshes with the driven gear 702 on the screw 7, and the driven gear 702 drives the screw 7 to rotate, and the sleeve 701 moves downward along the axis of the screw 7. When the sleeve 701 moves downward, the telescopic plate 603 is stretched through the rotating ring 605, so that when the sleeve 701 moves downward, the rotating sampling tube 3 is driven to move. The sampling tube 3 is drilled into the ground through the drill bit 4 at the bottom. The swing rod 161 at the feed port 401 is pressed by the soil and fits against the inner wall of the feed port 401, and the soil enters the sampling tube 3 through the feed port 401.

[0076] S2: As the sampling tube 3 continues to penetrate into the soil, the amount of soil collected in the sampling tube 3 increases, and then the force plate 113 abuts against the top surface of the base 1. The force plate 113 is lifted relative to the sampling tube 3 that continues to move downward, and the third elastic telescopic rod 121 is compressed. The force plate 113 pulls the dividing plate 11 through the pull rope 112, causing the dividing plate 11 to move horizontally in the receiving groove 10. The dividing plate 11 separates the soil entering the sampling tube 3 from other underground soil and blocks the feed port 401, so that the soil sample in the sampling tube 3 is no longer adhered to other soil;

[0077] When the partition plate 11 moves laterally, it pushes the first clamping block 901 inserted into the first clamping slot 402, causing the first clamping block 901 to move upward and press the first elastic element 902. The first inclined surface of the first clamping block 901 is placed in the first clamping slot 402, and the positions of the sampling tube 3 and the drill bit 4 are no longer restricted.

[0078] When the partition plate 11 moves laterally, the second clamping block 141 moves synchronously. When the partition plate 11 blocks the feed opening 401, the second clamping block 141 is aligned with the second clamping groove 403. The second clamping block 141 enters the second clamping groove 403 under the elastic force of the second elastic element 142, and the position of the partition plate 11 and the drill bit 4 is fixed.

[0079] S3: The driving motor 6 drives the main gear 6011 and the sub-gear 6012 to rotate in opposite directions via the output shaft 601, and the sleeve 701 moves upward along the axial direction of the screw 7. The sleeve 701 drives the sampling tube 3 upward via the rotating ring 605, the telescopic plate 603, and the first elastic telescopic rod 604, and the sampling tube 3 moves upward with the soil sample collected therein;

[0080] The sampling tube 3 rotates during the upward movement, and since the inner wall of the sampling tube 3 is in contact with the lower cutting plate 502, the lower cutting plate 502 cuts the sampling tube 3 and the soil sample adhered thereto, so that the soil sample on the inner wall of the sampling tube 3 is no longer adhered to the inner wall of the sampling tube 3;

[0081] As the sampling tube 3 continues to move upward, the curved surface of the top of the sampling tube 3 abuts against the upper rod 501, and the two arc-shaped shells 301 of the sampling tube 3 are forced to separate, thereby increasing the distance between the sampling tube 3 and the soil sample inside.

[0082] When the arc-shaped housing 301 moves, the push block 151 at the bottom moves to the second clamping groove 403. Under the elastic force of the third elastic element 152, the push block 151 presses down on the second clamping block 141 in the second clamping groove 403. The second clamping block 141 shrinks into the second groove 14, releasing the restriction between the partition plate 11 and the drill bit 4. The partition plate 11 moves back under the pull of the return spring 111. The partition plate 11 no longer blocks the feed port 401 of the drill bit 4, preparing for subsequent soil sampling.

[0083] S4: The soil sample collected in the sampling tube 3 is no longer adhered to the inner wall of the sampling tube 3 on the periphery and is no longer supported by the bottom dividing plate 11. The soil sample falls under the action of its own gravity. The swing rod 161 at the feed port 401 is reset and rotated under the action of the torsion spring when the drill bit 4 moves out of the ground. The columnar soil sample first contacts the buffer plate 163 to reduce the descending height of the columnar soil sample. The buffer spring 164 deforms to buffer the downward force of the columnar soil sample. Finally, the receiving plate 162 supports the columnar soil sample. The staff then continues to manually separate the arc-shaped shells 301 on both sides. The staff removes the columnar soil sample from the receiving plate 162 for testing.

[0084] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A foundation detection sampling device for water conservancy projects, comprising a base (1), characterized in that: Also includes: A top plate (2), the top plate (2) being arranged on the upper side of the base (1), and a connecting rod (101) being provided between the top plate (2) and the base (1); A sampling cylinder (3), the sampling cylinder (3) being movably arranged at the base (1), a drill bit (4) being arranged at the bottom of the sampling cylinder (3), a feed port (401) being provided on the drill bit (4) and communicating with the sampling cylinder (3), and a separation component for dividing soil being arranged inside the drill bit (4); A lifting assembly, the lifting assembly being arranged between the base (1) and the top plate (2) and being used to drive the sampling cylinder (3) to move vertically; A driving mechanism, the driving mechanism comprising a driving assembly for driving the sampling cylinder (3) to rotate and a transmission assembly connected to the driving assembly and for driving the lifting assembly to work; Wherein, a dividing plate (5) is fixedly provided on the top plate (2) and abuts against the inner wall of the sampling tube (3); The separation component includes a receiving groove (10) provided in the drill bit (4) and connected to the feed port (401), a partition plate (11) is slidably connected in the receiving groove (10), a return spring (111) is provided between the partition plate (11) and the inner wall of the receiving groove (10), one end of the partition plate (11) is connected to a pull rope (112), the end of the pull rope (112) away from the partition plate (11) passes through the drill bit (4) and is connected to a force plate (113), the force plate (113) and the top wall of the base (1) are movably opposed to each other, a sliding groove (12) for the force plate (113) to slide is provided on the sampling tube (3), a third elastic telescopic rod (121) is provided between the inner wall of the sliding groove (12) and the force plate (113), and a fixed pulley (13) slidably connected to the pull rope (112) is provided on the sampling tube (3).

2. A water conservancy project foundation detection sampling device according to claim 1, characterized in that: The driving assembly includes a driving motor (6) fixed on the top plate (2), an output shaft (601) of the driving motor (6) passes through the top plate (2) and is connected to a main gear (6011), a gear ring (602) is rotatably connected to the bottom of the top plate (2) and is meshed with the main gear (6011), a telescopic plate (603) is fixed to the bottom of the gear ring (602), a first elastic telescopic rod (604) is provided on the telescopic plate (603), an end of the first elastic telescopic rod (604) away from the telescopic plate (603) is connected to the sampling tube (3), and a rotating ring (605) is fixed to the outside of the telescopic plate (603).

3. A water conservancy project foundation detection sampling device according to claim 2, characterized in that: The lifting assembly comprises a screw (7) rotatably arranged between the base (1) and the top plate (2), a sleeve (701) being threadedly connected to the screw (7), and the sleeve (701) being slidably connected to the rotating ring (605).

4. A water conservancy project foundation detection sampling device according to claim 3, characterized in that: The transmission assembly includes a pinion (6012) fixedly connected to the output shaft (601), and a driven gear (702) meshing with the pinion (6012) is provided on the screw rod (7), and both the pinion (6012) and the driven gear (702) are rotatably connected in a cavity provided on the top plate (2).

5. A foundation detection sampling device for water conservancy projects according to claim 4, characterized in that: The sampling tube (3) includes two arc-shaped shells (301), the arc-shaped shells (301) are connected to a first elastic telescopic rod (604), a curved surface is provided on the top of the arc-shaped shell (301), the cutting plate (5) includes an upper rod body (501) that moves against the curved surface and a lower cutting plate (502) that moves against the inner wall of the arc-shaped shell (301), a support plate (8) is fixed on the drill bit (4), and a second elastic telescopic rod (801) is provided between the support plate (8) and the arc-shaped shell (301).

6. A water conservancy project foundation detection sampling device according to claim 5, characterized in that: A first groove (9) is provided at the bottom of the arc-shaped housing (301), a first clamping block (901) is slidably connected in the first groove (9) and is movably opposed to the dividing plate (11), a first elastic element (902) is provided between the first clamping block (901) and the inner wall of the first groove (9), a first inclined surface is provided at one end of the first clamping block (901) away from the first elastic element (902), and a first clamping groove (402) is provided on the drill bit (4) and is matched with the first clamping block (901).

7. A water conservancy project foundation detection sampling device according to claim 6, characterized in that: The dividing plate (11) is provided with a second groove (14), a second clamping block (141) is slidably connected in the second groove (14), a second elastic element (142) is provided between the second clamping block (141) and the inner wall of the second groove (14), a second inclined surface is provided at one end of the second clamping block (141) away from the second elastic element (142), a second clamping groove (403) is provided on the drill bit (4) to match the second clamping block (141), a third groove (15) is provided at the bottom of the arc-shaped housing (301), a push block (151) is slidably connected in the third groove (15) to movably abut against the second clamping block (141), and a third elastic element (152) is provided between the push block (151) and the inner wall of the third groove (15).

8. A foundation detection sampling device for water conservancy projects according to claim 7, characterized in that: The inner wall of the feed port (401) is provided with a plurality of movable grooves (16) in a circular shape, and a swing rod (161) is rotatably connected to each movable groove (16) via a pin shaft, and a torsion spring is sleeved on the pin shaft for driving the swing rod (161) to reset and rotate, and a receiving plate (162) is provided at the end of the swing rod (161), and a groove is provided in the receiving plate (162), and a buffer plate (163) is connected to the groove in an up-and-down sliding manner, and a buffer spring (164) is provided between the buffer plate (163) and the inner wall of the groove.

9. A method for using the foundation detection sampling device for water conservancy projects according to claim 8, characterized in that: The following steps are involved: S1: During sampling, the base (1) is placed on the ground, and the driving motor (6) is controlled to operate, and the output shaft (601) of the driving motor (6) drives the main gear (6011) and the sub-gear (6012) to rotate; The main gear (6011) is meshed with the gear ring (602) for transmission, and the gear ring (602) drives the sampling tube (3) to rotate via the telescopic plate (603) and the first elastic telescopic rod (604); The secondary gear (6012) meshes with the driven gear (702) on the screw (7), and the driven gear (702) drives the screw (7) to rotate, and the sleeve (701) moves downward along the axis of the screw (7). When the sleeve (701) moves downward, the telescopic plate (603) is stretched through the rotating ring (605), so that when the sleeve (701) moves downward, the rotating sampling tube (3) is driven to move. The sampling tube (3) is drilled into the ground through the drill bit (4) at the bottom. The swing rod (161) at the feed port (401) is pressed by the soil and fits against the inner wall of the feed port (401), and the soil enters the sampling tube (3) through the feed port (401); S2: As the sampling tube (3) continues to penetrate into the soil, the amount of soil collected in the sampling tube (3) increases, and then the force plate (113) abuts against the top surface of the base (1), and the force plate (113) is lifted relative to the sampling tube (3) that continues to move downward, and the third elastic telescopic rod (121) is compressed, and the force plate (113) pulls the dividing plate (11) through the pull rope (112), so that the dividing plate (11) moves horizontally in the receiving groove (10), and the dividing plate (11) separates the soil entering the sampling tube (3) from other soil underground, and blocks the feed port (401), so that the soil sample in the sampling tube (3) is no longer adhered to other soil; When the partition plate (11) moves horizontally, it pushes the first card block (901) inserted into the first card slot (402), so that the first card block (901) moves upward to press the first elastic element (902), and the first inclined surface of the first card block (901) is placed in the first card slot (402), and the positions of the sampling tube (3) and the drill bit (4) are no longer limited; When the partition plate (11) moves laterally, it drives the second clamping block (141) to move synchronously. When the partition plate (11) blocks the feed port (401), the second clamping block (141) is aligned with the second clamping groove (403). The second clamping block (141) enters the second clamping groove (403) under the elastic force of the second elastic element (142), and the positions of the partition plate (11) and the drill bit (4) are limited. S3: Then the driving motor (6) drives the main gear (6011) and the sub-gear (6012) to rotate in opposite directions via the output shaft (601), and the sleeve (701) moves upward along the axial direction of the screw (7). The sleeve (701) drives the sampling tube (3) to move upward via the rotating ring (605), the telescopic plate (603) and the first elastic telescopic rod (604), and the sampling tube (3) moves upward with the soil sample collected therein; The sampling tube (3) rotates during the upward movement, and since the inner wall of the sampling tube (3) is in contact with the lower cutting plate (502), the lower cutting plate (502) cuts the sampling tube (3) and the soil sample adhered thereto, so that the soil sample on the inner wall of the sampling tube (3) is no longer adhered to the inner wall of the sampling tube (3); As the sampling tube (3) continues to move upward, the curved surface at the top of the sampling tube (3) abuts against the upper rod (501), and the two arc-shaped shells (301) of the sampling tube (3) are forced to separate, thereby increasing the distance between the sampling tube (3) and the soil sample inside; When the arc-shaped housing (301) moves, the push block (151) at the bottom moves to the second card slot (403). The push block (151) is pushed downward by the elastic force of the third elastic element (152) to press the second card block (141) in the second card slot (403). The second card block (141) shrinks into the second groove (14), releasing the restriction between the partition plate (11) and the drill bit (4). The partition plate (11) moves back under the pull of the return spring (111). The partition plate (11) no longer blocks the feed port (401) of the drill bit (4), preparing for subsequent soil sampling. S4: The soil sample collected in the sampling tube (3) is no longer adhered to the inner wall of the sampling tube (3) on the periphery and is no longer supported by the bottom partition plate (11). The soil sample falls under the action of its own gravity. When the drill bit (4) moves out of the ground, the swing rod (161) at the feed port (401) is reset and rotated under the action of the torsion spring. The columnar soil sample first contacts the buffer plate (163), reducing the falling height of the columnar soil sample. The buffer spring (164) deforms to buffer the downward force of the columnar soil sample. Finally, the receiving plate (162) supports the columnar soil sample. The staff then continues to separate the two side arc-shaped shells (301) manually. The staff removes the columnar soil sample from the receiving plate (162) for testing.

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